Wrench.



UNITED STATES OTTMAR A. GATRELL,

PATENT OFFICE OF COLUMBUS, OHIO.

WRENCH.

SPECIFICATION forming part of Letters Patent No. 689,393, dated December24, 1901.

Application filed June 1, 1901. Serial No. 62,774. (No model.)

To all whom it may concern.-

Be it known that I, OTTMAR A. GATRELL, a citizen of the United States,residing at O- lumbus, in the county of Franklin and State of Ohio, haveinvented certain new and useful Improvements in Wrenches; and I dohereby declare the following to be a full, clear, and exact descriptionof the invention, such as will enable others skilled in the art to whichit appertains to make and use the same.

The object of this invention is to provide a simplified construction ofwrench the jaws of which can be quickly adjusted to fit upon pipes ornuts of various sizes.

The invention resides in a wrench having a fixed jaw with a shank havinga series of recesses and a movable jaw having a lever-arm to be actuatedby the shank of the fixed jaw, the movable jaw being pivoted in a framethat slides on the shank of the fixed jaw and said frame beingconstructed to engage the recesses in the shank of the fixed jaw.

An embodiment of the invention is shown in the accompanying drawings, inwhich- Figure 1 is a side view with a portion of the movablejaw-carryingframebroken out. Fig. 2 is a perspective view of the movablejawcarrying frame. Fig. 3 is a sectional view on the plane indicated bythe line a; a), Fig. 1; and Fig. 4 is a top view of the upper end of thewrench as shown in Fig. 1.

In the several views, 1 designates the fixed or inner jaw, the shank orhandled portion of which is shown to be made with a slot 1, having aseries of recesses 1 inone side thereof.

2 designates the movable jaw having aleverarm standing at approximatelya right angle thereto, said lever-arm being designated 2*.

3 designates a yoke-like frame that straddles the shank of the fixedjaw.

The movable jaw 2 is pivoted on a pin 4 in the frame 3, so that thegripping edge of said jaw 2 opposes the gripping edge of the jaw 1 andthe arm 2 opposes the shank of the fixed jaw 1. Apin 5 is passedtransversely through the sides of the sliding frame 3 and the slot- 1,so as to be adapted to engage any one of The shank of the fixed jaw therecesses 1".

preferably has a rounded corner 1, adapted to be borne against the armor lever 2 of the movable jaw 2.

The operation, which can readily be apprehended from an inspection ofFig. 1, is as follows: The jaws 1 and 2 are adjusted by movin g theframe 3 laterally, so as to carry the pin 5 out of any recess 1 in whichit might hap-' pen to be, and sliding said frame longitudi= nally in theslot 1 until the jaws are so far I separated as to approximately fitupon the pipe or not to be turned. Then by pressing down upon the handleof the wrench the corner 1 acts on the arm 2, moving the jaw 2 towardthe jaw 1, thus pinching the pipe or nut to be turned. When the handleis thus pressed down,the pin 5 finds the nearest recess 1", therebytemporarily fixing the frame 3.

With my wrench it will be observed that the time necessarily lost inturning up the usual screw or nut to adjust the jaws is saved and,moreover, that wear on the parts does not diminish the efficiency of thedevice in use.

What I claim, and desire to secure by Letters Patent, is-

1. A wrench comprising a fixed jaw having a handled shank, a series ofrecesses in said shank, a movable jaw having a lever-arm, a frame toslide on the shank of the fixed jaw in which said movable jaw ispivoted, said frame being constructed to engage the recesses in theshank of the fixed jaw, while the shank of the fixed jaw acts on thelever-arm of the movable j aw,substantially as described.

2. A wrench comprising a fixed jaw having a handled shank, a series ofrecesses 1 in said shank, a movable jaw having an arm 2 to be actuatedby said shank, a sliding frame 3 in which the movable jaw is pivoted,and a pin 5 to engage said recesses 1 when the shank is actuating thearm 2, substantially as described.

In testimony whereof I affix my signature in presence of two witnesses.

OTTMAR A. GATRELL. Witnesses:

GEORGE W. ALFRED, GEORGE M. FINOKEL.

